19226506118416 has 15 divisors (see below), whose sum is σ = 37251389586693. Its totient is φ = 9613244289600.

The previous prime is 19226506118387. The next prime is 19226506118419. The reversal of 19226506118416 is 61481160562291.

The square root of 19226506118416 is 4384804.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 988823404816 + 18237682713600 = 994396^2 + 4270560^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19226506118419) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16991116 + ... + 18087316.

Almost surely, 2^{19226506118416} is an apocalyptic number.

19226506118416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

19226506118416 is the 4384804-th square number.

It is an amenable number.

19226506118416 is a deficient number, since it is larger than the sum of its proper divisors (18024883468277).

19226506118416 is an frugal number, since it uses more digits than its factorization.

19226506118416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192410 (or 1096203 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 19226506118416 in words is "nineteen trillion, two hundred twenty-six billion, five hundred six million, one hundred eighteen thousand, four hundred sixteen".